The Principles Of Appropriate Use Of Tractors; The Description Of The System Of Travel Clutches; The Way Of Controlling The Travel Clutch By; The Differences In Ways Of Controlling The Travel Clutch By - Zetor CRYSTAL HD 150 Operator's Manual

The principles of appropriate use of tractors

The listed principles for tractor´s operation serve for facilitating the operation and guarantee
corresponding service life of travel clutch!

The description of the system of travel clutches

The tractor is equipped with two individual travel clutches, one for travelling forward and one for travelling
backward.
The selection of the driving direction and also the choice of a specific travel clutch is done by shifting the
reversing lever under the steering wheel from neutral position to the position forward or backward.

The way of controlling the travel clutch by

1 - Reversing lever
2 - Clutch control button on the head of reversing lever
3 - Clutch pedal

The differences in ways of controlling the travel clutch by

1 - By shuttle shift lever
This mode of operation has an automatic start function.
When the shuttle shift lever is moved to neutral, the clutch is disengaged.
When the shuttle shift lever is moved to the forward or reverse position, the clutch is engaged and then the
tractor starts to slide smoothly in the direction determined by the reversing lever.
The speed of the clutch engaging and the smoothness of the start is controlled by the electronic
control unit based on the information stored in the calibration and the operator can not influence it.
The automatic start-up function is more gentle to the clutch connections than the clutch pedal
control, so for the normal operation of the tractor when starting, shifting or reversing, use the clutch
control with automatic start-up.
2 - By clutch control knob on gear shift lever
This mode of operation has the function of automatic clutch engagement.
When the clutch control button is pressed on the gearshift lever, the clutch is disengaged.
When the clutch control button is released on the gearshift lever, the clutch engages.
The speed of the clutch engaging is controlled by the electronic control unit based on the information stored
in the calibration and the operator can not influence it.
3 - By clutch pedal
When the clutch pedal is depressed, the clutch is disengaged.
When the clutch pedal is released, the clutch engages.
The switching speed of the clutch is dependent on the clutch pedal's releasing speed.
The clutch pedal does not allow automatic start-up and the operation affects the speed and smoothness of
the start.
In normal operation, use the clutch pedal only to stop the tractor.
For the need for sensitive travel eg when connecting the tool or when handling the tractor in
confined spaces, if even the reduced gears are not too slow, use the clutch pedal for a short time.
It is forbidden to regulate the tractor speed by partially pressing the clutch pedal at engine
speeds above 1 200 rpm. Do not use the clutch pedal as a footrest. There is a risk of a lifespan
reducing or failure of the clutch.
DRIVING OPERATION
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